Chapter 200 A day on August 19

  Five million, just spent five million rubles, Qin Tao bought back the technology of Yak-141 in a package. At this moment, Qin Tao was very happy.

In later generations, Lockheed Martin bought it, but they spent 400 million, yes, 400 million U.S. dollars, even if there is an inflation factor, but the gap between 5 million rubles and 400 million U.S. dollars is still very big. big.

Of course, that was also because the two sides were hostile in the past. The Yakovlev Design Bureau sold technology in desperation to the former imaginary enemy. Of course, it cost a high price. Now, it is sold to friends. The friend was still so understanding, and even Nikolai was there, so Alexander finally agreed.

"Fifty Yak-141s, don't worry, we will do what we say. I have a relationship with the Chinese military, and Nikolai knows about it." Qin Tao continued to promise, and then extended his hand: "I hope we can cooperate in the future." Happy, and, if you encounter technical problems in the future, maybe we can help."

Zhao Ling was standing next to her, and Nicholas knew the identity of this female secretary very well, so he also nodded: "Yes, if the technology of Jacques-141 is mature, our navy can also purchase a batch, after all Our current heavy-duty aircraft-carrying cruiser still needs a special vertical take-off and landing fighter, but the Yak-38 has no actual combat capability, so it will be retired."

  Wait, Yak-38 retired?

  In Qin Tao's mind, a bold idea suddenly came up. Now that this kind of aircraft is retired, it can be sold as junk! Pack it up and sell it to Siam? I just don’t know if the Yak-38 can fly in the tropics!

   Moreover, even if it can fly by then, I don’t know if it will burn a big hole in the deck. Therefore, you should be cautious when buying junk, and you have to think again.

  Both of them talked about technical issues, and Alexander also returned to technology: "Qin, can you be more detailed about the fan's thinking you just mentioned?"

   "Of course, do you have a pen and paper? I can draw a sketch."

   "Then please go to our drawing room."

   Rows of desks are neatly arranged in the drawing room, and there are special drawing boards beside the desks, but it is empty and there is no one there. The Yakovlev Design Bureau, at first glance, looks like it is going downhill.

  Qin Tao came to a drawing board, picked up the drawing tools, and began to draw skillfully.

   Yak-141 is an aircraft with a maximum take-off weight of 19.5 tons, which is almost twice that of Yak-38 and Sea Harrier, so it needs quite strong power.

Although its R-79 engine has a maximum afterburner thrust of 152 kN, during the vertical take-off and landing phase, the compressor of this engine also needs bleed air to supply the wingtips and tail nozzles for attitude adjustment. So the maximum thrust drops to 137.2 kN. However, it will be no problem to install two RD-41 lift engines developed by the Tumansky Design Bureau in tandem with the rear fuselage of the upper cockpit. This engine has a single thrust of 41.68 kN, which is enough to ensure that the aircraft can be used in dry land. Fly.

   Now, if we want to replace the two lift engines in front with a fan, how bad should this fan be?

  The graphics are being drawn quickly, after all, it is just a simple diagram, but it still looks clear at a glance.

   At the back is a horizontal cylinder, which is the R-79 engine. The tail nozzle drawn by Qin Tao is still downward, and the front is like a vertically placed gasoline barrel.

"The structure of this fan is not complicated, just like the compressor of our aero-engine, it is a two-stage counter-rotating fan, which has a disc with blades, two sets of fixed blades and a set of variable inlet guide blade , this variable inlet guide vane provides the variation in thrust from idle to maximum thrust required for VTOL."

   Qin Tao mainly introduced this lift fan, which was completely designed according to the Rolls-Royce company. Anyway, it was developed after so many studies. It must be the most mature design solution, and there is no need to make an alternative one.

Alexander opened his eyes wide and looked at the design drawing. As an aircraft designer, he had a hunch that this design might really work. Especially, the bottom blade can be used to change the thrust. A good initiative.

"As for the entire fan, in terms of overall size, a complex aerodynamic design is required. I think the diameter is about 1.2 meters. In terms of height, it has to pass through the entire aircraft body, which is the same as the height of the body. I estimate that it is also 1 meter. About two, as for its lifespan, two hundred hours is enough, I think, with the existing technology of the Soviet Union, it should not be a big problem to make these.”

  Alexander nodded. This lift fan is equivalent to a compressor of a turbine engine, so it shouldn't be too difficult.

   "The difficulty of this kind of lift fan is in the transmission system. This transmission shaft must transmit more than 20,000 horsepower at a speed of at least 8,000 revolutions per minute."

   "How is this possible?" Immediately, Nicholas came to his senses.

  The power of 20,000 horsepower is almost close to the power of a warship, so the propeller of a warship only has a few hundred revolutions, so the power output of the engine must pass through the reducer, and then output to the propeller through the transmission shaft.

  It is not difficult to output 20,000 horsepower and 8,000 revolutions per minute from a transmission shaft, but it is very difficult to combine these two requirements together.

  The transmission shaft must be hard enough and the processing precision must be high, which is simply challenging the limit of engineering mechanics.

   Impossible, crazy!

  Qin Tao smiled: "This is not the most difficult thing, the most difficult thing is the clutch."

   Clutch!

There is no need for a clutch on a warship. Whether it is a boiler or a diesel engine, the power output is changed by adjusting the power machinery. Even if the operation of reversing the propeller can be realized on the engine, it will never touch anything. Reducers and such.

  However, this system is different. The lift fan is only used during the take-off and landing phase, and the engine behind is always rotating, so it involves the problem of power combination and disconnection.

The one or two hundred horsepower engine on the truck may burn the clutch once it encounters special road conditions. If the power machinery exceeds one thousand horsepower, try to avoid touching this thing. Now, it is necessary to be able to reliably connect and disconnect the 20,000 Horse power? How can this be?

(On a jet plane, only the thrust is mentioned, not the horsepower. Only on a propeller plane, the engine horsepower is mentioned, not the thrust. This is because the conversion of horsepower into thrust needs to pass through the propeller. The efficiency of the propeller also played a big role.)

  Qin Tao secretly laughed in his heart, is this thing so easy to make? The aviation technology of the Yankees can almost be described as alien technology. In this way, the vertical take-off and landing fertilizer has repeatedly skipped tickets, and it has been delayed for several years before entering service.

  Feidian has a higher take-off weight, so the lift fan needs 29,000 horsepower. The current Yak-141 has 20,000 horsepower.

  The design drawing of the lift fan has been drawn, as for how to make it a reality, it depends on the person in front of you.

In Alexander's eyes, there were amazement, confusion, and doubts, and they all turned into firmness in the end: "These two difficulties have been overcome, and our Yak-141 will be able to get rid of the lift engine and officially launch Ship, this project, we will continue!"

  His expression, to use a common saying to describe it, even if he sells everything, he will continue to do it!

Qin Tao nodded: "Then I wish you success. At this stage, the version of the lift engine can be developed and matured first, and it can be ready for service as soon as possible. It is also convenient for us to purchase. As for this version, it can be used as a pre-research project for future projects. After all , this method has higher requirements on the flight control system.”

It is impossible for the pilot to complete this kind of complicated adjustment by manual operation, so it is necessary to rely on the computer. This aircraft is the first digital fly-by-wire flight control. automatic.

  Of course, when in danger, the ejection escape is also automatic, which has been the case since the Yak-38 period. Often the pilot has not reacted yet, and suddenly, he went out by himself!

   It is precisely because of the automatic ejection escape system that the crashed pilot of the Yak-141 survived.

  Now, when Qin Tao said that the flight control was coming, Alexander’s face became tense again: “What’s wrong with the flight control? We’ve searched many times, but we haven’t found the reason yet.”

   "I don't know anything else. The most feared risk of digital fly-by-wire flight control is the pilot-induced shock." Qin Tao knew everything at this time.

"This is caused by a problem with the programming of the flight control rate. Specifically, the aircraft veers to the right, and the pilot pushes the joystick to the left to correct it. After discovering that the plane was veering to the left, I quickly corrected it and pushed the joystick to the right. As a result, the correction was too much. In this way, the plane shook back and forth, and the small yaw was rapidly amplified, and finally the plane was completely out of control.”

  Although it is called the pilot to induce the shock, it has nothing to do with the pilot. It is caused by a problem with the flight control system. Qin Tao is a shipbuilder, not an aircraft designer, so that is all he knows.

When countries are developing advanced digital fly-by-wire flight controls, they will first input the flight control program into a stabilizer machine for testing and testing. I don't understand, or even if I know, I don't have that much money.

  Alexander opened his eyes wide: "Yes, that's it. Our plane went through such a process before it crashed! Qin, thank you for giving us pointers!"

  Qin Tao had a smile on his face, he was right when a blind cat hit a dead mouse!

   "Qin, how do you know this?" At this moment, Nicholas, who had been an audience all along, spoke.

  Qin Tao works in the shipbuilding industry, how can he know so much about the aviation industry? It's amazing.

  Yeah, how did I know?

This question turned around in Qin Tao's mind, and he said calmly: "A few years ago, we had a good relationship with the West, and the West once sold us fighter jets, and their engineers said that digital telex is in Some problems in the research and development. I heard about it when I was drinking with them, and I didn’t take it seriously. Speaking of it now, I am really flattered to be able to inspire professional aircraft designers.”

   Just push it directly to Westerners. We have all been in contact with Mirage 2000 and F-16.

  Nicolas nodded.

   "Drinking? By the way, after talking so much, it's time for us to drink too." Nicholas said.

   After a lot of tossing, when the four of them came out of the drawing room, it was already dark.

  Lacour and the others had already seen enough of the Yak-141, they went to the production workshop, and they had already arrived at the cafeteria, so they met again.

   "This time we brought Moutai, our national wine, come, everyone, don't be polite." Qin Tao opened the bottle and began to pour wine for everyone.

   Lacour and his adjutant didn't drink much, and they drank too much soon, and were helped back.

   Gu Lao then asked: "Mr. Qin, what did you do just now? It took so long?"

   "Of course it's about aircraft design. I've had a lot of inspiration. Mr. Gu, are you recruiting people there? It's okay for me to be a designer for you."

  Old Gu’s eyes widened. Are you an aircraft designer?

   "Yes, if you don't believe me, you can ask Comrade Alexander."

  Alexander nodded immediately: "That's right, Qin's design is quite good and has given us a lot of inspiration. Gu, you are also an aircraft designer. After seeing our aircraft today, can you give us some advice?"

   "Where is there any opinion, before the Soviet designers, we are apprentices." Gu Lao said very politely.

  Qin Tao picked up the wine glass: "I have some ideas."

   "What? Please tell me." Alexander was very solemn.

   "During the war a few months ago, the Americans used a large number of F-117 stealth fighter jets and destroyed a large number of ground targets." Qin Tao said, "Everyone should know about this, right?"

   "That's right, I've heard of it, wait, tell me?" Elder Gu looked at Qin Tao in disbelief: "Stealth fighter?"

  It was only the early 1990s, and only the F-117 fighter was exposed, which created a myth and shocked everyone in the world with the world-leading technological strength of the United States.

  Of course, Mr. Gu also knows, but, that kind of aircraft is only an attack aircraft, but can it also be used as a fighter?

   What is the current domestic level? The second-generation J-8 is already at the highest level, and based on its slender figure, it is nicknamed a handsome man in the sky. It doesn't care at all that such a figure can't do high-overload maneuvers at all. It's a fighter jet, but in fact It's just an interceptor.

   Stealth fighter? Too far!

  However, Qin Tao knew that according to some declassified information, before the disintegration of the Soviet Union, the Yakovlev Design Bureau had already begun to develop the next-generation model of the Yak-141.

   This aircraft is improved on the basis of Yak-141, and it is also called Yak-43 (there is also a saying that it is Yak-41M, or Yak-143. I don’t know how the previous 1 was added.)

According to the declassified information of later generations, this Yak-43 has undergone stealth modification in appearance, such as making the two vertical tails into a slanted shape, and at the same time, there is also a built-in bomb bay. The weight of the machine has increased to a full 25 tons, so the engine has also been replaced with the NK-32 engine on the Tu-160. (The hero of East China is skeptical. Even if the thrust of the engine on the bomber is sufficient, it is too large to be installed on a fighter.)

  Now, anyway, he is idle and bored, and he is in a friendly drinking atmosphere, so Qin Tao said these things casually, to see what attitude this Alexander has, and what if he can cheat out of something?

   "Yes, invisibility is the future trend, but unfortunately... come, drink!" Alexander picked up the glass and drank it down.

   What a pity?

  It's a pity that they have no money. Qin Tao quickly realized that it's really embarrassing to expose people's scars like this!

Lao Maozi now has Su-27 and MiG-29, but they will not stop the pace of research and development. The new generation of fighters is also in the pre-research, and it is taken over by the Mikoyan Design Bureau. After all, this A brand new fighter is too expensive, and the Sukhoi Design Bureau is not qualified to play with it.

   As for the Yakovlev Design Bureau, I can only think about it. Looking at the empty drawing room, you can know that they have no ability to develop stealth fighters at all.

"I think that with the development of aviation technology, vertical take-off and landing fighters will definitely mature. In the future, maybe all fighters will be vertical take-off and landing. Don't look at the difficulties your design bureau is encountering now, as long as you persist Go down, there will be a bright day!"

  Alexander nodded, then picked up the wine glass again, and drank it down. If you look closely, you can find something shiny in the corner of his eyes.

  Qin Tao is also emotional, it seems that he needs to make more money! Only when you have money in the future can you start a happy life of buying, buying, and buying, and it can also give these frustrated people a new life.

  Qin Tao didn't drink too much, and he walked very steadily, so he walked into the guest house with Zhao Ling.

   Next door, Lacourt and his lieutenant are already snoring,

   "Brother Tao, I'm curious about one thing." Zhao Ling said to Qin Tao after turning on the speaker of the Walkman.

   "What's the matter? Why do I know so much aviation knowledge?"

   "No, why did you provide those advanced design concepts? I have been observing from the sidelines. That Alexander is very interested in your design. This design will make the vertical take-off and landing fighter more mature."

  Why don’t you bring these concepts to a design firm in China? Moreover, with your personality, it doesn't seem like you will take the initiative to give alms.

  Qin Tao smiled, so it was for this!

   Needless to say? Of course it's idle and boring.

"Xiaoling, just wait and see. Now I will provide them with technical ideas, let them do research first, and then spend some money to buy the technology when the opportunity is right. In this way, they are equivalent to helping us develop .”

  Zhao Ling nodded, deeply agreeing with Qin Tao's statement.

  Qin Tao said to spend some money, of course he was buying junk money.

the next day.

   Lacourt rubbed his aching head, still feeling emotional in his heart, how could this Moutai be so good, something is wrong?

  He remembers very clearly that when he was visiting China, he also drank Moutai, not the taste.

   "Hey, Rakour, how did you watch yesterday?" Qin Tao asked Rakul.

"Well, that's right. Andre took us around and saw a lot. That engine is really against the sky. It can output a thrust of 150,000 cattle. Although its lifespan is not as good as that of the West, it only In terms of performance, it's pretty good."

Qin Tao nodded: "I made an agreement with them yesterday. As long as the Yak-141 is tested and ready for service, I will purchase fifty from them. At that time, if you need it, you can transfer it to you first. We will The aircraft carrier is not in a hurry."

   "Qin, that's great!" Lacour said, "The performance of this aircraft far exceeds that of the Sea Harrier fighter jet. So, after I go back, I will report to my superiors. We have to wait for this aircraft!"

   "Since you have seen it and are satisfied with the performance of this aircraft, can you go back?" Qin Tao said.

   Lacour nodded: "Yes, you can go back, but, Qin, when are you leaving? If you continue to stay here, then we can also investigate a few days later."

It’s inconvenient for you to follow me. Yesterday, I poured you wine first, and it’s convenient to communicate after pouring you down. Qin Tao was about to find an excuse. While talking, Zaitsev had already come, and Lacourt shut up quickly .

   "Qin, Your Excellency Nicholas has something to do. He went back to the base last night. Do you want to continue wandering around here, or go back with me? If you have other schedules, I will go with you."

   In the past, Zaitsev served as Qin Tao's bodyguard, so there is no problem now.

  Qin Tao was just a little curious, and looked at Zaitsev: "I went back last night? Did something happen?"

"I don't know about this." Zaitsev said, even if he is Nikolai's confidant, he did all kinds of private affairs, but he is a naval infantry after all, and he is not qualified to have access to many secrets of.

  Wait, Qin Tao suddenly thought of something. During this period of time, he was so busy that he forgot many things!

   "When is August today?" Qin Tao asked hastily.

   "August 19." Zhao Ling quickly replied.

  Nima, how could I ignore such an important day? I've been so busy with a lot of things recently that I forgot about such an important day.

   Just last night, many things happened in the Red Empire, and major changes occurred in the army. Therefore, after getting the news last night, Nicholas must hurry back to his job.

  However, this matter has nothing to do with the navy. Nicholas is just doing his duty.

  Qin Tao was in a bad mood. Zhao Ling was very curious, but she didn't ask. No matter what unexpected changes happened, as long as Qin Tao was around, there would be no problem.

  Zhao Ling has great trust in Qin Tao.

   "Zaytsev, we need to leave your country, the sooner the better." Qin Tao said.

Although this matter will be resolved peacefully, from the beginning of this matter, Lao Maozi's country will be very chaotic. Qin Tao does not want to have unexpected changes and be trapped here in the end. It won't be too late for Tao to come back and be his second-tier businessman.

  (end of this chapter)